From f99f5cdea29d844df7091924f427b3a88fff0cb8 Mon Sep 17 00:00:00 2001
From: monaxys <fedorov-m98@mail.ru>
Date: Wed, 22 Jun 2022 21:25:19 +0300
Subject: [PATCH] deck basics

---
 Makefile     |  6 +++---
 config.mk    |  3 ++-
 src/card.h   | 34 ++++++++++++++++++++++++++++++
 src/dealer.c | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/dealer.h | 10 +++++++++
 src/main.c   | 12 +++++++++++
 src/player.h | 10 +++++++++
 7 files changed, 130 insertions(+), 4 deletions(-)
 create mode 100644 src/card.h
 create mode 100644 src/dealer.c
 create mode 100644 src/dealer.h
 create mode 100644 src/player.h

diff --git a/Makefile b/Makefile
index 20b955a..f217076 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 include config.mk
 
-c-jack: src/main.c
-	$(CC) $^ -o $@
+c-jack: src/main.c src/dealer.c
+	$(CC) $^ -o $@ $(LDFLAGS)
 
 %.o: src/%.c
-	$(CC) $^ -c
+	$(CC) $(CFLAGS) $^ -c
 
 clean:
 	rm -f *.o c-jack
diff --git a/config.mk b/config.mk
index bfc5e13..791e7fc 100644
--- a/config.mk
+++ b/config.mk
@@ -1,2 +1,3 @@
 CC=cc
-CFLAGS=-ansi -pedantic -Wall -g
+CFLAGS=-std=c99 -pedantic -Wall -g
+LDFLAGS = 
diff --git a/src/card.h b/src/card.h
new file mode 100644
index 0000000..5fee025
--- /dev/null
+++ b/src/card.h
@@ -0,0 +1,34 @@
+#ifndef CARD_H_ENTRY
+#define CARD_H_ENTRY
+//Описание структуры карты
+
+enum suits
+{
+    hearts = 0,
+    spades,
+    clubs,
+    diamonds
+};
+enum rangs
+{
+    two = 0,
+    three,
+    four,
+    five,
+    six,
+    seven,
+    eight,
+    nine,
+    ten,
+    jack,
+    queen,
+    king,
+    ace
+};
+struct card
+{
+    enum rangs rang;
+    enum suits suit;
+};
+
+#endif /* CARD_H_ENTRY */
diff --git a/src/dealer.c b/src/dealer.c
new file mode 100644
index 0000000..d1cee0b
--- /dev/null
+++ b/src/dealer.c
@@ -0,0 +1,59 @@
+#include "dealer.h"
+#include <stdint.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#define CARD_AMOUNT_SUIT 13
+#define SUIT_AMOUNT 4
+#define CARD_AMOUNT_DECK CARD_AMOUNT_SUIT * SUIT_AMOUNT
+
+int fill_deck(struct card *deck)
+{
+    puts("заполняем колоду...");
+    for(int i = 0; i < SUIT_AMOUNT; i++)
+    {
+        for (int k = 0; k < CARD_AMOUNT_SUIT; k++)
+        {
+            deck[k + i * CARD_AMOUNT_SUIT].rang = k;
+            deck[k + i * CARD_AMOUNT_SUIT].suit = i;
+        }
+    }
+    return 0;
+}
+static uint8_t get_num()
+{
+    int fd = open("/dev/urandom", O_RDONLY);
+    if (fd < 0) {
+        return -1;
+    }
+    uint8_t c;
+    do{
+        read(fd, &c, 1);
+        if(c == EOF){
+            close(fd);
+            return -2;
+        }
+    }while(c >= (UCHAR_MAX + 1) / CARD_AMOUNT_DECK * CARD_AMOUNT_DECK);
+    close(fd);
+    return abs(c % CARD_AMOUNT_DECK);
+}
+
+int shuffle_deck(struct card *deck)
+{
+    for(int i = 0, k = 0; i < 1000; i++, k++){
+        if(k >= CARD_AMOUNT_DECK){
+            k = 0;
+        }
+        uint8_t chg_card = get_num();
+        if (chg_card >= CARD_AMOUNT_DECK || chg_card < 0){
+            return 1;
+        }
+        struct card tmp = deck[k];
+        deck[k] = deck[chg_card];
+        deck[chg_card] = tmp;
+
+    }    
+    return 0;
+}
+
diff --git a/src/dealer.h b/src/dealer.h
new file mode 100644
index 0000000..6b36f48
--- /dev/null
+++ b/src/dealer.h
@@ -0,0 +1,10 @@
+#ifndef DEALER_H_ENTRY
+#define DEALER_H_ENTRY
+#include <stdio.h>
+#include "card.h"
+
+struct card *pick_card();
+int fill_deck(struct card *deck);
+
+int shuffle_deck(struct card *deck);
+#endif /* DEALER_H_ENTRY */
diff --git a/src/main.c b/src/main.c
index c05c0c4..b18792b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,4 +1,16 @@
+#include <stdio.h>
+#include "dealer.h"
+#define PLAERSCNT 4
+
+int money, bet;
+char players[PLAERSCNT] = {1, 2, 3, 4};
+
 int main(int argc, char **argv)
 {
+    struct card deck[52];
+    fill_deck(deck);
+    if(shuffle_deck(deck)){
+        return 2;
+    }
     return 0;
 }
diff --git a/src/player.h b/src/player.h
new file mode 100644
index 0000000..ceb0fc4
--- /dev/null
+++ b/src/player.h
@@ -0,0 +1,10 @@
+#ifndef PLAYER_H_ENTRY
+#define PLAYER_H_ENTRY
+
+struct player
+{
+    int money;
+    
+}
+
+#endif /* PLAYER_H_ENTRY */